In response to the events of March 7 and 9 in Selma, Alabama, President Lyndon B. Johnson sends a bill to Congress that forms the basis for the Voting Rights Act of 1965. It is passed by the Senate May 26, the House July 10, and signed into law by President Johnson August 6.

The bodies of Portuguese opposition politician Humberto Delgado and his secretary Arajaryr Moreira de Campos are found in a forest near Villanueva del Fresno, Spain (they were killed February 12).

In the Dominican Republic, officers and civilians loyal to deposed President Juan Bosch mutiny against the right-wing junta running the country, setting up a provisional government. Forces loyal to the deposed military-imposed government stage a countercoup the next day, and civil war breaks out, although the new government retains its hold on power.

Vietnam War: Prime Minister of Australia Robert Menzies announces that the country will substantially increase its number of troops in South Vietnam, supposedly at the request of the Saigon government (it is later revealed that Menzies had asked the leadership in Saigon to send the request at the behest of the Americans).

June 28 – The DeFeo family moves from Brooklyn, New York, to 112 Ocean Avenue in Amityville, Long Island, New York, in the United States. The murder of all but one of the DeFeos nine years later, on November 13, 1974, by the oldest son, Ronald/Ronnie "Butch" DeFeo Jr., and the subsequent claims of a haunting at 112 Ocean Avenue by the Lutz family, would lead to The Amityville Horror franchise of books and movies.

July 28 – Vietnam War: U.S. President Lyndon B. Johnson announces his order to increase the number of United States troops in South Vietnam from 75,000 to 125,000, and to more than double the number of men drafted per month - from 17,000 to 35,000.

Singapore is expelled from the Federation of Malaysia, which recognises it as a sovereign nation. Lee Kuan Yew announces Singapore's independence and assumes the position of Prime Minister of the new island nation – a position he holds until 1990.

Hurricane Betsy roars ashore near New Orleans with winds of 145 mph (233 km/h), causing 76 deaths and $1.42 billion in damage. The storm is the first hurricane to cause $1 billion in unadjusted damages, giving it the nickname "Billion Dollar Betsy". It is the last major hurricane to strike New Orleans until Hurricane Katrina 40 years later.

November 6 – Freedom Flights begin: Cuba and the United States formally agree to start an airlift for Cubans who want to go to the United States (by 1971 250,000 Cubans take advantage of this program).

British theatre critic Kenneth Tynan says "fuck" during a discussion on BBC satirical programme BBC-3 for what many believed was the first time on British television. The corporation later issues a public apology.

A new 1-hour German-American production of the ballet The Nutcracker, with an international cast that includes Edward Villella in the title role, makes its U.S. television debut. It is repeated annually by CBS over the next 3 years but after that is virtually forgotten until issued on DVD in 2009 by Warner Archive.